Phosphorus-containing reaction products useful as flameproofing agents

Abstract

Phosphorus-containing reaction products are provided which are formed from: A. an amidophosphate of the formula ##STR1## in which R 1 and R 2 each are lower alkyl, halogenoalkyl or alkenyl or R 1 and R 2 together are lower alkylene; B. a 1,3,5-triazine substituted by at least 2 primary amino groups; C. formaldehyde and, optionally, D. a lower alkanol. These phosphorus-containing reaction products are useful as flameproofing agents for cellulose-containing fiber materials.

What is claimed is: 
     
       1. A phosphorus-containing condesation products made from a. 2 to 6 moles of an amidophosphate of the formula ##STR14## in which R 1  and R 2  each independently are alkyl having 1 to 4 carbon atoms, halogenoalkyl or alkenyl having 2 to 4 carbon atoms, or R 1  and R 2  together are alkylene having 2 to 4 carbon atoms;   b. 1 mole of a 1,3,5-triazine substituted by at least 2 primary amino groups;   c. 2 to 12 moles of formaldehyde or of an agent releasing formaldehyde; and optionally   d. 0 to 6 moles of an alkanol having 1 to 4 carbon atoms.   
     
     
       2. Phosphorus-containing condensation products according to claim 1 obtained by a process in which the constituents (a), (b) and (c) are all reacted simultaneously; or firstly (a) is reacted with (c) and afterwards with (b); or firstly (b) is reacted with (c) and afterwards with (a); or firstly (b) is reacted with (c), thereupon with (a) and subsequently again with (c). 
     
     
       3. A phosphorus-containing condensation products according to claim 1 which product is made from 2 to 6 moles of constituent (a), 1 mole of the constituent (b), 2 to 6 moles of the constituent (c) and 0 to 5 moles of the constituent (d), with the procedure being such that constituents (a), (b) and (c) are all reacted simultaneously, or firstly (a) is reacted with (c) and afterwards with (b), or firstly (b) is reacted with (c) and afterwards with (a). 
     
     
       4. A phosphorus-containing condensation products according to claim 1, which product is made by reacting together 2 to 5 moles of the constituent (a), 1 mole of the constituent (b), 3 to 5 moles of the constituent (c) and 0 to 3 moles of the constituent (d). 
     
     
       5. A phosphorus-containing condensation products according to claim 1, which product is made from the component (a) and a methylolated 1,3,5-aminotriazine substituted by at least 2 primary amino groups. 
     
     
       6. A phosphorus-containing condensation products according to claim 1, which product is made from a O,O'-dialkylamido-phosphate as constituent (a) corresponding to one of the formulae ##STR15## in which R 3  and R 4  each are alkyl having 1 to 4 carbon atoms. 
     
     
       7. A phosphorus-containing condensation products according to claim 1, which product is made from a constituent (a) consisting of 2,2-dimethylcyclopropyl-O,O'-amidophosphate, di-isopropyl- or diethyl-O,O'-amidophosphate. 
     
     
       8. A phosphorus-containing condensation products according to claim 1, which product is made from a constituent (b) consisting of melamine. 
     
     
       9. A phosphorus-containing condensation products according to claim 1, which product is made from constituent (d) consisting of ethanol or methanol. 
     
     
       10. A phosphorus-containing condensation products according to claim 1, which product corresponds to the formula ##STR16## in which R 1  and R 2  have the meanings given in claim 1, X is hydrogen or alkyl having 1 to 4 carbon atoms, m o  an integer from 2 to 6, and n o  an integer from 1 to 7. 
     
     
       11. A phosphorus-containing condensation products according to claim 1, which product corresponds to the formula ##STR17## in which R 1  and R 2  have the meanings given in claim 1, X is hydrogen or alkyl having 1 to 4 carbon atoms, m an integer from 2 to 6, and n an integer of at most 6-m. 
     
     
       12. A phosphorus-containing condensation products according to claim 1, which product corresponds to the formula ##STR18## in which R 3  and R 4  each are alkyl having 1 to 4 carbon atoms, m 1  is an integer from 2 to 5, and n 1  an integer of at most 5-m 1 . 
     
     
       13. The phosphorus-containing condensation products according to claim 1, which product corresponds to the formula ##STR19## 
     
     
       14. A process for the manufacture of a phosphorus-containing condensation products from an amidophosphate and an aminotriazine, in which process a. 2 to 6 moles of an amidophosphate of the formula ##STR20## in which R 1  and R 2  each independently are alkyl having 1 to 4 carbon atoms, halogenoalkyl having 2 to 4 carbon atoms, alkenyl having 2 to 4 carbon atoms, or R 1  and R 2  together are alkylene having 2 to 4 carbon atoms,   b. 1 mole of a 1,3,5-triazine substituted by at least two primary amino groups, and   c. 2 to 12 moles of formaldehyde or of an agent releasing formaldehyde, are reacted together at a temperature of 70° to 180° C, and   d. subsequently etherified with 0 to 6 moles of an alkanol having 1 to 4 carbon atoms.   
     
     
       15. Agent for the fireproofing of cellulose-containing fiber materials, which agent consists of an aqueous preparation containing a phosphorus-containing condensation products made from a. 2 to 6 moles of an amidophosphate of the formula ##STR21## in which R 1  and R 2  each independently are alkyl having 1 to 4 carbon atoms, halogenoalkyl or alkenyl having 2 to 4 carbon atoms, or R 1  and R 2  together are alkylene having 2 to 4 carbon atoms;   b. 1 mole of a 1,3,5-triazine substituted by at least 2 primary amino groups;   c. 2 to 12 moles of formaldehyde or of an agent releasing formaldehyde; and   d. 0 to 6 moles of an alkanol having 1 to 4 carbon atoms.